Koko the gorilla receives kittens for 44th birthday

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Koko, the gorilla who knows sign language, received an adorable present to celebrate her 44th birthday.

Koko received a box of kittens at the Gorilla Foundation.

The gorilla chose two of the kittens to keep and become part of her family.

According to the Gorilla Foundation, the new kittens have energized Koko and brought out her maternal instincts.